“I saw that her eyes had dimmed. I was certain that she was dead. I covered her up with a blanket and duvet. I could not cope with her dying.” When found by police she was still holding a piece of silver foil rolled into a cigarette and was surrounded by drugs paraphernalia.

She had a pacemaker fitted in 2006 after cocaine abuse damaged her heart.

Police made the grim find after stopping her husband on suspicion of driving under the influence of alcohol or drugs. Rausing, 49, admitted preventing her lawful burial and was sentenced in August to 10 months in jail suspended for two years.

Rausing, 49, inherited the £4.5billion Tetra Pak fortune.

He met his wife in rehab in 1989 after they struggled with crack cocaine.